I won't be getting in to see my ob or midwife for a bit, trying to figure out my possible due date, if anyone wants to make a guess! I know it's really early, we're just excited

I had a baby in Nov 2011, these are my periods from then until now... may give an idea about ovulation times? Just trying to provide as much information that might be helpful...
Feb 2-6
Mar 23-2
Apr 18-23
Jun 1-8
Jul 2-9
Aug 6-12
Sep 14-20
Oct 14-20
Nov 17-23
Dec 18-24
Jan 16-22